On my Jensen Tv I have two outputs(front and rear) but I also have a subwoofer output but it isnt a red and white plug. It is a single plug. My question is Can I get a plug from radio shack that will be a 2 to 1 plug that I can plug into my subwoofer output and use it to control my subs?

 

usually a sub only uses one channel of audio...not 2
you can tell this if u have ever used a line converter that can increase and decrease output by channel. you can turn one and the sub sound will not go away but turn the other and it will... so all you have to do is just use a single rca cable and hook it to the right input (the one most amps use)
this only applies to using a single channel of the amp...if using both channels on a 2 channel...then both r needed..

 

it is a two channel amp but I bridged it. So do I still need two?

 

wow im not sure...i think you may only need the channel your + speaker teminal is on...b/c the - is just a return...

 

spliter will work fine.

Some class D amps have a spot for a single plug.

 

Connect a single RCA cable to the Sub output on the HU, however long is required to reach your amp, and use an RCA 'Y' adapter (1x female, 2x male) to split the signal into your left & right channel inputs on the amp. Or you could use an RCA 'Y' adapter (1x male, 2x female) to split it at the HU, then use a regular stereo RCA cable to the HU.